The best free alternative to Serial Port Monitor is PortKiller, which is also Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Serial Port Monitor and ten of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Serial Port Monitor are SerialMon, SerialTool, Tauno Monitor and Portmon.
Advanced multi-OS desktop tool for monitoring and managing local TCP ports, identifying bound processes, watching ports for notifications, handling Cloudflare Tunnels, filtering and pinning, managing Kubernetes port-forwards with logs, plus real-time process termination.
Monitors RS232 communication thru software or with simple hardware. Protocol analyzer for ABB RP570, ABB SPA-bus and NMEA 0183 protocol.
Serial Port Communication software ideal for COM communication. Multiplatform utility running on Windows, MacOS and Linux. It is completely free.
A Simple stand-alone serial port monitor for the GNOME desktop. It aims to be beginner friendly, small and easy to use. Not feature-rich and professional. Remembers the last settings (Theme, Baud Rate, Port etc.).
Portmon is a utility that monitors and displays all serial and parallel port activity on a system. It has advanced filtering and search capabilities that make it a powerful tool for exploring the way Windows works, seeing how applications use ports, or tracking down problems in...
AccessPort is serial port monitoring tool for technicians, engineers and software developers designing or debugging serial port related projects.
This project is a cross-platform serial port assistant. It can run on Windows, Linux, Android, and macOS.
A lightweight macOS status bar app that monitors and manages development processes running on ports 2000-6000. The app provides real-time process detection and allows you to kill individual processes or all processes at once.
If you're a firmware developer or an embedded software developer then this tool has been made for you. This modernly designed desktop application serves as a development tool to help view serial data on your COM port.
Free Software to monitor (bi-directional) Serial Port communication RS232 between two devices, use our free Bill Serial Port Monitor. This software allows you to view, log, analyse the activity of your full duplex serial RS-232 port.
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